We postulate that the laceration of arachnoid and the subdural liquid are the starting factors of local inflammation, and the haemorrhage in the neomembrane is a pathological response for reconstructing arachnoid in inflammation procedure. 蛛网膜破口和TSE是局部炎性修复反应的始因,新生膜出血是修复蛛网膜的一种病理反应。